Custom link plugin

Hi guys,,,

I tried to modify the link.js to use the mediaboxAdvanced Lightbox.. what i need to do is add 'rel="lightbox[var1, var2, var3]"' in the <a> tag..

var1 can be the following words: flash, social, audio, inline, external
var2 and var 3 would be the video size (no need of var2 and 3 if it's pictures..)

If it's pictures, var1 would be a custom word (for gallery sets)...

I was able to add the input (see the linkCustom.jpg)

For that I had this line around line #234 and 1307
********* advAttr( 'lightbox', 'rel' );

and this around line #1131
type : 'hbox',
children :
[
{
type : 'text',
label : 'Lightbox',
'default' : '',
id : 'lightbox',
setup : setupAdvParams,
commit : commitAdvParams



I'm pretty new to javascript then I don't understand everything !?
Any help?!

Thanks
Ben